The car is Totally stock. Dyno Dynamics rolling so apparently they UNDER read.

Two other 335d made 300bhp but mine had more miles hence the higher figure. 10 cars that day ran on the rollers with several making under the factory quoted output.

A 335i (stock) made what every other 335i does on the rollers between 315-330bhp and made 322bhp so this suggests it was all very accurate that day. On the road i live with my friends 335i no probs. Also have ran with friends with E46 M3's and im with them all day long too. AFTER a re-map i should pull past.

I want to Re-map and at Autsport international was speaking to several diesel tuners. The most convincing being chippeduk.

What does everyone think of tuning boxes?

Thanks

Carlos

EDIT*** Nikah, she will re-map fine. Two friends with 57 plate 335d have been mapped fine so my march 07 should be ok!

Did any remapped cars go on the rollers at the same time? What were your at the wheels figures?

Jules.

No re-mapped 335d went on the rollers that day. 257 at the wheels mate. What did your re-mapped one make stock and after a re-map mate?

Carlos

Hi Carl,

On the Dyno Dynamics Dynomometer it doesn't calculate correctly from wheels to fly as it assumes the car is a manual (it's how it's programmed). However, maybe the one you've been on has had this changed? Of the remapped cars I've seen on a Dyno Dynamics RR the best I've seen is 275bhp at the wheels which equates upto approx 355bhp with a correction applied, the lowest I've seen is 250bhp at the wheels. At 265bhp at the wheels the Dyno Dynamics equates up to 320bhp at the fly using the manual gear correction, allowing for additional losses through it being an auto this would equate up to approx 340bhp. Your results appear to be consitent with the standard corrections assuming a manual box so I am confused at your high readings on this particular RR, maybe all of the readings from this RR are high as has been already hinted at?

My car has had 5 different maps from different tuners and 275 at the wheels is the highest I've seen.

The one I ran at Fighting Torque last year was with 263.3bhp at the wheels and this was supplied by Chipped UK.

Did any remapped cars go on the rollers at the same time? What were your at the wheels figures?

Jules.

No re-mapped 335d went on the rollers that day. 257 at the wheels mate. What did your re-mapped one make stock and after a re-map mate?

Carlos

Hi Carl,

On the Dyno Dynamics Dynomometer it doesn't calculate correctly from wheels to fly as it assumes the car is a manual (it's how it's programmed). However, maybe the one you've been on has had this changed? Of the remapped cars I've seen on a Dyno Dynamics RR the best I've seen is 275bhp at the wheels which equates upto approx 355bhp with a correction applied, the lowest I've seen is 250bhp at the wheels. At 265bhp at the wheels the Dyno Dynamics equates up to 320bhp at the fly using the manual gear correction, allowing for additional losses through it being an auto this would equate up to approx 340bhp. Your results appear to be consitent with the standard corrections assuming a manual box so I am confused at your high readings on this particular RR, maybe all of the readings from this RR are high as has been already hinted at?

My car has had 5 different maps from different tuners and 275 at the wheels is the highest I've seen.

The one I ran at Fighting Torque last year was with 263.3bhp at the wheels and this was supplied by Chipped UK.

Jules.

Whether the rolling road can accurately translate from one to another im am unsure. The wheels figures say it all tho 257bhp at the wheels aint shy tho is it! which would equate to 310bhp right?

Not all cars ran that day made more than stock power, many made less than the factory stated output. So i very much doubt it over-read?!

Well aslong as i get a map which will increase a good percentage amount i will be happy. Like i said a 335i made more than stock power 322 vs 306 but thats what all 335i tend to make anyhow. I think BMW underquoted the stock figures for both cars.

I did a 13.9@102 at Santa Pod but firmly believe i could have done a mid 13. Maybe quicker.

After a re-map i hope to get a low 13 or even break into the 12's (Wish me luck, i really hope i can do it. Thinking i may need a quiafe diff to do it tho), The 335d is capable im sure.

[ The wheels figures say it all tho 257bhp at the wheels aint shy tho is it! which would equate to 310bhp right?

Not all cars ran that day made more than stock power, many made less than the factory stated output. So i very much doubt it over-read?!

Yes 257bhp at the wheels does equate upto 310bhp at the fly using the standard correction on the Dyno Dynamics.

Maybe a clearer example is that on the last two 335d's I've seen on a DD RR as standard they have produced 225 and 223bhp at the wheels respectively, with a map applied they have resulted in 269.1 and 263.3bhp at the wheels. Either you have a superb standard car, or one of the RR's isn't reading accurately? Now even I am confused?

Of the 335d's that were there the same day as you, what sort of figures did they get as std? Is there a link to a thread on another forum?

Hi there, did you not read my other post? The two other 335d, one made 301bhp and the other 300bhp. Both had under 2k on the clock. Mine had over ten times that.

It is a superb standard car, Like previously mentioned lives easily with E46 M3's and 335i's just cant wait for the map. Also it mught be worth noting the other two 335d have been re-mapped since and one made 322bhp and the other 311bhp??? strange how they were supposed to make 350bhp and didnt.

Hi there, did you not read my other post? The two other 335d, one made 301bhp and the other 300bhp. Both had under 2k on the clock. Mine had over ten times that.

It is a superb standard car, Like previously mentioned lives easily with E46 M3's and 335i's just cant wait for the map. Also it mught be worth noting the other two 335d have been re-mapped since and one made 322bhp and the other 311bhp??? strange how they were supposed to make 350bhp and didnt.

Carlos

Hi,

Yes I did read your post but it wasn't clear if they were standard or remapped.

I've just re-read the rest of this post and it says that you have ran a 13.9sec@102mph at Santa Pod, my remapped car will hit 100mph in the low 12s, that's a big difference. Therefore I will stand by my original thoughts that one of the Rolling Road set-ups wasn't reading correctly.

That's the problem with RR's, it's hard to compare results unless they are all done on the same one on the same day. Get your car remapped and then you'll enjoy it even more, but pick carefully as too who you use.

I'll hopefully be running my car again at Fighting Torque and have also enquired about running at the nex Vmax, so we'll see what it's capable of.

10 bmw's were rolling roaded the same day. 3x 335d, 300bhp,301bhp and 310bhp.

a 335i stock made 322bhp, which is what they all make also. So they were done on the same day.

Remember i made 257 at the wheels with the other two 10 odd bhp behind again.

Not disputing this. My point was that the only other DD graphs I've seen for 335d's show totally different results to the ones that you guys got on your RR day.

When my car had a remapped 263.3bhp at the wheels it was running low 12's to 100mph, yours with 257bhp at the wheels runs nearly 14secs to 102mph......that's a big difference!! That's why I think that the Rolling Road figures are wrong...and it may be the ones that I have been using.

Ive seen so many variations on rolling roads over the years I dont believe any figures they quote Ive seen a 30bhp difference between two rolling roads on my Busa engined westy both rollers using coast down to calculate. As long as goes well thats all that matters, I havent had my remapped 335d checked yet but expect it to be high as it runs a stage 3 map, Its so much livelier than standard its unreal !

as a comaprison heres a graph from a twin turbo d bmw,mapped by the same guy that did my car the top figures in red are prior to mapping and the lower figures after it was done , this car also had a strong setting installed, it gained 54bhp and 84lbs ft torque , I dont know how accurate the figures are on that rolling road but the gain should be accurate as it was the same rolling road and same car/ tyre pressures etc

10 bmw's were rolling roaded the same day. 3x 335d, 300bhp,301bhp and 310bhp.

a 335i stock made 322bhp, which is what they all make also. So they were done on the same day.

Remember i made 257 at the wheels with the other two 10 odd bhp behind again.

Not disputing this. My point was that the only other DD graphs I've seen for 335d's show totally different results to the ones that you guys got on your RR day.

When my car had a remapped 263.3bhp at the wheels it was running low 12's to 100mph, yours with 257bhp at the wheels runs nearly 14secs to 102mph......that's a big difference!! That's why I think that the Rolling Road figures are wrong...and it may be the ones that I have been using.

Jules.

You run a low 12 second pass at 100 mph? seems a slow trap speed for such an impressive time. E60 500bhp M5's run low 12's but at over 116mph.

Do you have your time slip still?

So there is chance yet then, that my re-mapped one WILL break into the twelves, if yours can run na low 12, along with m5's m6's etc, albeit at a lower trap speed.

dibbly_dobbler said:

Hi Carlos.

Like the 335d a lot but seems a bit of an odd choice for a young lad like yourself ? Anything else on the shortlist ? Any reason you went for it ?

Cheers, Mike.

PS Welcome

Hi mate, Because any new BMW is a peach to drive and the 335d is amazing in every aspect.

But My father bought the car, therefore spec'd it. Even on the way down to collect her in march i was under the impression it was a 335i. I wouldnt go back now tho. Its A GReat car with great performance, a match for any 335i any day of the week.

I would not sell her for any other car, apart from an E60 M5. But i would need talking into it, as it aint as sexy looking as the E92 coupe altho a ABSOLUTE ANIMAL!

JeffC said:

good choice of car

Ive seen so many variations on rolling roads over the years I dont believe any figures they quote Ive seen a 30bhp difference between two rolling roads on my Busa engined westy both rollers using coast down to calculate. As long as goes well thats all that matters, I havent had my remapped 335d checked yet but expect it to be high as it runs a stage 3 map, Its so much livelier than standard its unreal !

as a comaprison heres a graph from a twin turbo d bmw,mapped by the same guy that did my car the top figures in red are prior to mapping and the lower figures after it was done , this car also had a strong setting installed, it gained 54bhp and 84lbs ft torque , I dont know how accurate the figures are on that rolling road but the gain should be accurate as it was the same rolling road and same car/ tyre pressures etc

Hi mate, i aint bothered whether she is 286bhp or 310bhp stock, i know how well it goes on the road and what cars it beats/lives with/ and gets beaten by. Any car which can get into the 13's is a quick enough motor. Let alone for a diesel LOL.